程序员必备！非常有用的工具站点集合

Collection of handy online tools for developers, with great UX. IT Tools is a free and open-source collection of handy online tools for developers & people working in IT.

Race your friends by typing fun facts! Analyze and practice your tricky keys to improve your WPM! Enter the country leaderboards to show off your skills. The best online typing race game.

Test your typing skills today! Play against real live people from all over the world. TypeRacer is the best free massively multiplayer online competitive typing game. Race against live opponents while learning to increase your typing speed and having fun! Type quotes from popular music, songs, anime, comic books and more.

Svix Play makes it quick and easy to receive and debug webhooks.

Instantly generate a free, unique URL and email address to test, inspect, and automate (with a visual workflow editor and scripts) incoming HTTP requests and emails

Create impressive SVG animations and more. Add them easily to your website or app. Get started for free!

Typing practice lessons to improve your speed and accuracy.

Replit is an AI-powered platform for building professional web apps and websites.

Toolbox for Developers

Visualize code in Python, JavaScript, C, C++, and Java

CoderPad is the best tool available for conducting programming phone screen interviews. Edit code and run it with your candidate, realtime in the browser.

JSONing is an online JSON toolbox that provides a variety of tools, including a JSON formatter, JSON linter, JSON AI fixer, Mock API, JSONL tools, converters, and more.

JSON Crack Editor is a tool for visualizing into graphs, analyzing, editing, formatting, querying, transforming and validating JSON, CSV, YAML, XML, and more.

Create graph online and use big amount of algorithms: find the shortest path, find adjacency matrix, find minimum spanning tree and others

A collection of free, simple and useful online tools for software developers, web developers and network/system administrators.

Share code in real-time with developers in your browser. An online code editor for interviews, troubleshooting, teaching.

Turn your code into beautiful images. Choose from a range of syntax colors, hide or show the background, and toggle between a dark and light window.

Regular expression tester with syntax highlighting, PHP / PCRE & JS Support, contextual help, cheat sheet, reference, and searchable community patterns.

Regular expression tester with syntax highlighting, explanation, cheat sheet for PHP/PCRE, Python, GO, JavaScript, Java, C#/.NET, Rust.

Pyrexp is a regex tester for Python, it allows to verify syntax, check matches, and visualize patterns effortlessly. Export regex visuals as JPGs for easy sharing.

Collection of various dev tools that can help every developer in his day to day job

The magic of the Internet

Access a comprehensive hotkey cheatsheet for popular software and applications. Enhance your workflow and productivity with time-saving keyboard shortcuts.

Developers and Open Source authors now have a massive amount of services offering free tiers, but it can be hard to find them all to make informed decisions.

draw.io is free online diagram software for making flowcharts, process diagrams, org charts, UML, ER and network diagrams

An easy to use editor for crontab schedules.

The best place to build, test, and discover front-end code.CodePen is a social development environment for front-end designers and developers. Build and deploy a website, show off your work, build test cases to learn and debug, and find inspiration.

Hire better devs with CoderPad's live coding interview & technical assessment platform. Filter candidates based on their coding skills, in 99+ languages.